You may think you’ve seen many images of Earth just like this one since the Apollo astronauts snapped the very first one more than four decades ago.
But actually, you haven’t.
Maybe you’re thinking, ‘What about those recent Blue Marble images from NASA?’ Sorry, but nope. Those were mostly mosaics of multiple images stitched together.
No single image of the full sunlit face of Earth has been has been shot since the Apollo 17 astronauts captured the iconic Blue Marble photograph in 19